Adjustable frictional clamping device.



T. S. LEVIS.

ADJUSTABLE FRICTIONAL CLAMPING DEVICE. APPucATloN FILED Jun/26. 1933.

' 1,147,029. Patented July 20, 1915.

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annum ATTORNEY riNrru sauras Arana unica.

'rIIo-MAs s. LEVIS, or crIIoAeo, ILLINOIS, AssIGNon ro MODEL romvrCOMPANY, or CHICAGO, ILLINOIS, A; CORPORATION or ILLINOIS.

ADJUSTABLE FnIOrIoNAL' OL'AMPING DEVICE.

To all whom it may concern j Be it known that I, VTIIoMAs Lnvrs, a

citizen of the United States, residing in Chi`v cago, county of Cook,-andState of Illinois, have invented certain new and useful lmprovementsin Adjustable Frictional Clamp` ing Devices, of which the following is aspecification.` j j My invention relates to frictionalclamping devices,having todo particularly with adjustable clampingV devices, vmyinvention being more `particularly useful in connection with model dressforms for yieldinglyholding them in adjustedv positions, an object of myinvention being to provide a device of the character described whichisvsimple of construction, cheap to manufacture and positive in itsholding operation.

In the accompanying` drawing l. have illustrated embodiments of myinvention in which, jj. w f

Figure 1 illustrates a skirt frame for dress forms embodying myinvention; Fig. Q is a side elevation of Fig. 1 but showing only part ofthe skirt form; Fig. 3y is a top View of Fig. l being broken away atseveral points so as to present a more contracted gure; Fig. 4 is asectionalong the-line'ff-t of Fig. 2; Fig. 5 is a section along the line5-5 of Fig. 2, bothl Figs. 4. and 5 showing the holding device in anormal or locked position; Fig. 6 is a section similar to Fig. 5 butwith the connecting strip drawn through the yielding clamping memberl inan unlocked position; and Fig. 7v is a modified form of the holdingdevice of my invention.

Referring now more particularly to the detail constructionof myinventionas embodied in a skirt frame-I have shown a frame comprising fourvertical sections 1, 2, 3 and 4, each section being laterally adjustablewith relationA to the other sections. This matter of adjustment is, ofcourse, old and my invention is directed more particularly to animproved holding device and I have applied such a holding device at eachof the portions A, B, C and D. IThe parts to be joined are connected bymeans ofa rib bon-like member 5 which is suitably fixed to one section,preferably by means of rivets 6, said strip 5 then extending betweenrelatively yielding members 7, 8 which are suitably secured to eachotherrpreferably by means of rivets 9. The connecting strip 5 has aplurality of locking elements in the Patented .nuyea reis.

i Application filed .Tilly 26, 1913. Serial No. 781,406.

form of` indentations 10 -suitably disposed along the strip while therelatively yielding members 7. and 8 carry devices adapted to coperatewith the holding indentations 10 of strip 5. These coperating devicescomprise preferably a rivet member 1l which also serves to hold partsofthe frame, and an indentation 8 in the bridge members 8, said elements11 and 8 acting upon the concave `and convex sides respectively oflocking elements 10. Y

In Figai l have shown the strip 8 in the act of being drawn through theyielding members, illustrating the manner in which the yielding membersseparate to allow adjusting movement thereof.

In F ig.V 7 I have illustrated another form of my invention in which theconnecting strip 5 is provided with rectangular or clon# gatedindentations V10 and correspondingly shaped holding devices'are providedin the relatively movable members 7, 8. By the useof the rectangularlyshaped elements a more rigid holding means is provided, and

thus relative lateral movement of the connected parts is more nearlyprevented. The rectangularly shaped indentations 10 in the strip 5arefso constructedthat the projecting portion enters the rectangularlyshaped indentation of the bridge element, and the rectangularly shapedindentation in the vertical 'strip 7 of Fig. 7 is adapted to enter theindented side of the movable strip. |lhus the connecting strip may bedrawn through the opening made by the bridge and vertical strips underopposing tension thereof and yieldingly held in any one of a pluralityof positions.

In operating the clamping device of my invention to secure differentadjustment of the part or partswhich it connects the strip 5 is simplyforced through the relatively movable yielding members 7, 8 said members7 8 separating as in Fig. 6 so as to allow such movement of the strip 5until the desired degree of adjustment is secured.

While I have embodied my invention in a skirt frame for model forms Icontemplate applying it in other ways than that shown, the particulararrangement shown being simply for the purpose of`illustration.

It will also be apparent that many changes and modifications of theembodiments shown will readily suggest themselves and therefore I do notdesire to be limited to the exact structure as shown and described butaim to cover all that which comes within the spirit and scope of theappended claims.

What I claim as new and desire to secure by Letters Patent is:

1. An adjustable frictional clamping device comprising a pair ofrelatively yielding members suitably secured together so as to :form anopening between them, and a ribbon like connecting strip extendingthrough said opening in contact with said members and having a pluralityof holding elements whereby said strip may be drawn longitudinallythrough said opening in either direction while under holding tension ofsaid members and yieldingly held by said elements in dilierentadjustments without lockinfr.

L 2). An adjustable connecting device comprising a mounting member, ayielding bridge member` suitably secured to the mounting so as to form avariable opening between them, a ribbon like connecting-strip extendingthrough said opening in Contact with said members and adapted to bedrawn therethrough in either direction while under holding tension of`the members, and cooperating means on said strip and members wherebysaid strip may be yieldingly held in any one of a plurality ofconnecting positions.

i, 3. A device of the character described Copies ofi this patent may beobtained for cured to the other device so as to form a variable openingthrough which said strip extends in holdingvcontact therewith, saidstrip thus being adapted to be drawn in either direction through theopening under .holding tension of the bridge member and ments positionedwithin said opening and.

carried by said bridge member and associated device, said stripextending through said Aopening and yieldingly held by `said elementswhereby said strip may be drawn through the opening in either directionunder holdin tension of theelements, and in-V dentations in said stripadapted to coperate with said elements whereby said strip is yieldinglyheld in adjustedps'itions.

Signed by me at Chicago, county of Cook, and State of Illinois, in thepresence of two witnesses. .y

i i THOMAS S. LEVIS. Witnesses: MICHAEL Lunar, G; E. Muiinnnii.

live cents each, by addressing the V"omn'1`issoner of Patents,Washington, ID. C.

